English verb conjugation
CAN YANK

Regular verb: yank - yanked - yanked

Affirmation

Simple form	V-ing form
I can yank you can yank he can yank we can yank you can yank they can yank	I can be yanking you can be yanking he can be yanking we can be yanking you can be yanking they can be yanking
Perfect	V-ing perfect
I can have yanked you can have yanked he can have yanked we can have yanked you can have yanked they can have yanked	I can have been yanking you can have been yanking he can have been yanking we can have been yanking you can have been yanking they can have been yanking

Negation

Simple form	V-ing form
I cannot yank you cannot yank he cannot yank we cannot yank you cannot yank they cannot yank	I cannot be yanking you cannot be yanking he cannot be yanking we cannot be yanking you cannot be yanking they cannot be yanking
Perfect	V-ing perfect
I cannot have yanked you cannot have yanked he cannot have yanked we cannot have yanked you cannot have yanked they cannot have yanked	I cannot have been yanking you cannot have been yanking he cannot have been yanking we cannot have been yanking you cannot have been yanking they cannot have been yanking

Interrogative form

Simple form	V-ing form
can I yank? can you yank? can he yank? can we yank? can you yank? can they yank?	can I be yanking? can you be yanking? can he be yanking? can we be yanking? can you be yanking? can they be yanking?
Perfect	V-ing perfect
can I have yanked? can you have yanked? can he have yanked? can we have yanked? can you have yanked? can they have yanked?	can I have been yanking? can you have been yanking? can he have been yanking? can we have been yanking? can you have been yanking? can they have been yanking?

Interro-negative form

Simple form	V-ing form
can I not yank? can you not yank? can he not yank? can we not yank? can you not yank? can they not yank?	can I not be yanking? can you not be yanking? can he not be yanking? can we not be yanking? can you not be yanking? can they not be yanking?
Perfect	V-ing perfect
can I not have yanked? can you not have yanked? can he not have yanked? can we not have yanked? can you not have yanked? can they not have yanked?	can I not have been yanking? can you not have been yanking? can he not have been yanking? can we not have been yanking? can you not have been yanking? can they not have been yanking?